Case Converter Online — Convert Text to Uppercase, Lowercase & Title Case
Transform text formatting instantly between 10+ case styles: Uppercase, Lowercase, Title Case, CamelCase, and Slug.
Runs in your browser. Your files never leave your device. See how to check
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How to do it
- 1Choose your settings
Fill in the details or pick the options you need.
- 2See the result
The preview updates right away as you change things.
- 3Download or save it
Save the result to your device. Nothing is sent to or stored on a server.
About this tool
Quickly reformat documents, articles, headings, and code identifiers. Offers one-click conversions for Sentence case, UPPERCASE, lowercase, Capitalized Words, Title Case, camelCase, kebab-case, snake_case, and Alternating cAsE with word count and character count statistics.
Tips for best results
Take a moment to read the options before you start, and try the tool with a small sample first. Everything runs in your browser on your own device, so nothing you type or add is uploaded, and closing the tab clears it. If something does not look right, reload the page and try again, or use the report link on this page to tell us what went wrong so we can fix it. If a result still looks wrong, change one value at a time to see which box matters most. Bookmark this page if you will need the tool again.
Quick facts
- Category: Documents
- Works in your browser, no sign-up, no upload.
- Your input stays on your device.
- Available in many languages.
- Content last reviewed:
Frequently asked questions
What is the difference between Title Case and Capitalized Words?
Title Case keeps minor words like 'and', 'in', 'of', 'the' lowercase, while Capitalized Words capitalizes every single word.
Can I convert text into coding formats like camelCase or snake_case?
Yes, it has built-in presets for camelCase, snake_case, and kebab-case for developers.
Is there a limit on how much text I can convert?
No limit! You can convert entire book chapters, articles, and long codebases instantly.
Is my text saved or sent to any server?
No. All text manipulation is done in client memory without external network calls.